diff --git a/packages/shopping/src/controllers/user.controller.ts b/packages/shopping/src/controllers/user.controller.ts
index 92d8afe30..83f43705c 100644
--- a/packages/shopping/src/controllers/user.controller.ts
+++ b/packages/shopping/src/controllers/user.controller.ts
@@ -80,7 +80,6 @@ export class UserController {
         'application/json': {
           schema: getModelSchemaRef(NewUserRequest, {
             title: 'NewUser',
-            exclude: ['id'],
           }),
         },
       },
diff --git a/packages/shopping/src/models/user.model.ts b/packages/shopping/src/models/user.model.ts
index 44248e530..6cfed3329 100644
--- a/packages/shopping/src/models/user.model.ts
+++ b/packages/shopping/src/models/user.model.ts
@@ -1,4 +1,4 @@
-// Copyright IBM Corp. 2018. All Rights Reserved.
+// Copyright IBM Corp. 2019. All Rights Reserved.
 // Node module: loopback4-example-shopping
 // This file is licensed under the MIT License.
 // License text available at https://opensource.org/licenses/MIT
diff --git a/packages/shopping/src/repositories/user-credentials.repository.ts b/packages/shopping/src/repositories/user-credentials.repository.ts
index cc4237c8b..7f1ec51a1 100644
--- a/packages/shopping/src/repositories/user-credentials.repository.ts
+++ b/packages/shopping/src/repositories/user-credentials.repository.ts
@@ -1,6 +1,10 @@
-import {DefaultCrudRepository} from '@loopback/repository';
+// Copyright IBM Corp. 2019. All Rights Reserved.
+// Node module: loopback4-example-shopping
+// This file is licensed under the MIT License.
+// License text available at https://opensource.org/licenses/MIT
+
+import {DefaultCrudRepository, juggler} from '@loopback/repository';
 import {UserCredentials, UserCredentialsRelations} from '../models';
-import {MongoDataSource} from '../datasources';
 import {inject} from '@loopback/core';
 
 export class UserCredentialsRepository extends DefaultCrudRepository<
@@ -8,7 +12,7 @@ export class UserCredentialsRepository extends DefaultCrudRepository<
   typeof UserCredentials.prototype.id,
   UserCredentialsRelations
 > {
-  constructor(@inject('datasources.mongo') dataSource: MongoDataSource) {
+  constructor(@inject('datasources.mongo') dataSource: juggler.DataSource) {
     super(UserCredentials, dataSource);
   }
 }